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Explain the role of the sun in photosynthesis

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The sun is essential for photosynthesis. Sunlight provides the energy for photosynthesis, a process in which plants use sunlight, water and carbon dioxide to produce oxygen and glucose. The sun's ultraviolet radiation helps to energize the reaction centres within a plant’s cells, which drives the photosynthetic process. The sun's light also provides the wavelength of light that plants use to absorb and use the energy they need.